The mathematician Euler was born in18th century. Euler's calculation ability is so amazing that he can even do mental arithmetic on high numbers. Euler's most outstanding contribution is to create a pure profession about mathematics. Before Euler, mathematics was a luxury. Mathematics can't make ducks lay eggs or produce. It seems useless. Euler combined mathematics with life, which opened an era, and the calculation method, speed and mathematical logic all stood at the top of the era. Rules? The eighteenth century. Euler's knowledge and character are not dispensable.
Gauss was only eight years old when Euler died. Gauss is called the prince of mathematics. He developed many famous theories and landmark papers in his life. But he was afraid to publish it because he was afraid of the church, and many of them were published after his death. If Gauss's mathematical notes can be published in time, the development of mathematics can be at least forty years ahead of schedule. There are more than one hundred formulas and theorems named after Gauss. Although Gauss did not create a new branch of mathematics, his contributions to many branches of mathematics are complete and original, which is incomparable to Euler.
Gauss and Euler are heights that ordinary people can't reach in their lifetime. It can be said that they are the words of God, and they are legends that open a new era. Many of our lives seem to have nothing to do with them. In fact, without them, our time will go backwards.